4G Pressure Tank Fiber
✅General Description: 4G Pressure Tank Fiber
A 4-gallon fiber pressure tank is a compact, non-metallic, pressurized storage vessel used primarily in domestic water systems, especially RO systems, for maintaining water pressure and ensuring smooth water flow. It is constructed with a fiberglass-reinforced composite body, making it corrosion-resistant, lightweight, and durable.
🔩 Technical Specifications
| Feature | Details |
|---|---|
| Capacity | 4 gallons (approx. 15 liters) total volumeEffective volume: ~2.5–3 gallons (usable water) |
| Tank Material | Outer shell: Fiberglass-reinforced composite (FRP)Liner: Polypropylene or polyethylene |
| Bladder/Diaphragm | Yes – typically butyl rubber (for potable water) |
| Design Pressure | Usually 100 PSI (6.8 bar); check with manufacturer |
| Pre-Charge Pressure | 5–7 PSI (factory set); adjustable via Schrader valve |
| Fittings | ¼” or ⅜” NPT plastic or stainless steel connector |
| Orientation | Vertical (with stand) or horizontal (with bracket) |
| Coating/Finish | UV-resistant outer finish (often white, blue, or gray) |
| Certifications | NSF/ANSI 58 or 61 (for potable water use), CE, or equivalent |
🧰 Common Applications
- Residential RO systems
- Under-sink water filtration
- Drinking water dispensers
- Light-duty hydro-pneumatic systems
- RV or mobile water systems
🌟 Advantages
- Corrosion-resistant (ideal for areas with high humidity or saline air)
- Lightweight and easy to install
- No rust or scaling
- Safe for drinking water (if NSF-certified)
- Low maintenance
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